Are 90 percent of tumors growing on the kidney malignant

Basically, about 95% of renal tumors are malignant, and benign tumors are rare. Among them, adult renal malignant tumors occur more often than 40 years old, and men are more than women. Renal cancer (renal cell carcinoma, also known as renal adenocarcinoma) is more common, accounting for about 80%~90% of renal malignant tumors. Due to the increase in physical examination, the diagnosis rate of asymptomatic renal cancer is also increasing, so that patients can be treated at an early stage.

Followed by renal pelvis cancer. Malignant renal tumors in children are renal embryoma (nephroblastoma), and the incidence is mostly before three years old. Benign renal tumors are simple renal cysts, renal angiomyolipoma, etc.